S&T Kontron KBox C-103-0, Руководство пользователя

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KBox C-103-CFL-x - User Guide, Rev. 1.0
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4.5.8. RESCUE Button and RSQ LED
The rescue function is not intended for use with a system in an application environment. It is
designed to be used if the standard BIOS flash is corrupted, in order to get the system to
boot in a defined and safe state for further failure resolution.
Please refer to the chapter 17 “KBox C-103-CFL CPLD Specific Registers” (t.b.d.)
The RESCUE button (marked RSQ, Figure 15, pos. 3, Figure 11) is used to force using the backup flash for system
booting.
The RESCUE LED (RSQ, Figure 11, Figure 15, pos. 4) blinks red when the backup flash is selected for booting. The backup
flash contains a cloned BIOS (uEFI) version. In the event the system does not properly start-up or gets hung-up and
restarting (cold booting) the system does not help, it is possible to switch to the backup boot flash and then restart
the system. To do this, press the RSQ button for more than five seconds, whether or not the system is running it will
now start-up using the backup flash for booting.
To revert to using the standard boot flash, the system must be cold started, or remove power completely from the
system and then reapply.
4.5.9. Status and General Purpose LEDs
After power is applied and the KBox C-103-CFL performs the boot procedure, the LEDs show the POST code. In case of
a boot failure within the uEFI the last post code is displayed. When the boot phase is passed without errors, the LEDs
change to their status and general purpose function.
The following table provides information concerning these LEDs (Figure 11 and Figure 16).
Figure 16: Detail - Status and General Purpose LEDs
Table 4: Status and General Purpose LEDs
Status and General Purpose LEDs
Designator Function Color Description Post Code
TH Thermal
Green Normal operation Bit #7 MSB
Red blinking
The system turns off due
to over temperature
DR Drives (SSD/HDD) Green SSD/HDD active Bit #6
M2 M.2 2242 Card Green M.2 card active Bit #5
WD Watchdog Red blinking
Watchdog timeout
occurred
Bit #4
GP1 General Purpose 1
Red/Green/Orange
User general purpose 1 Bit #3
GP2 General Purpose 2
Red/Green/Orange
User general purpose 2 Bit #2
GP3 General Purpose 3
Red/Green/Orange
User general purpose 3 Bit #1
GP4 General Purpose 4
Red/Green/Orange
User general purpose 4 Bit #0 LSB